I think this might be the most addictive game of the jam! Having the upgrade system adds a lot, and makes you want to try one more time to see if different upgrades might help along the run. I really want to try some more to see if you can reach a steady-state and go max speed :)
Was a bit confused by the 'don't touch the edge' when actually you want the player to cross the line, and a bit disappointed by the lack of a restart button, but these are small tweaks that could be easily improved.